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Finding the Fourth Proportional to 404,005.20, 606,007.80 and 235,715.55

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Solution

The fourth proportional to 404,005.20, 606,007.80 and 235,715.55 is: 353,573.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,005.20 : 606,007.80 = 235,715.55 : x
  2. Step 2: Convert to fraction form
    404,005.20/606,007.80 = 235,715.55/x
  3. Step 3: Cross multiply
    404,005.20x = 606,007.80 × 235,715.55
  4. Step 4: Simplify right side
    404,005.20x = 142,845,461,881.29
  5. Step 5: Solve for x
    x = 142,845,461,881.29/404,005.20
  6. Step 6: Final answer
    x = 353,573.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.